JP2012156607A - Mobile terminal device for visually-challenged person - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mobile terminal device that improves convenience if a visually-challenged person is a user of the device.SOLUTION: A mobile terminal device comprises: a communication processing unit (not shown) for transmitting and receiving information; a touch panel unit 102 in which a display part for displaying information and an operation part for accepting operation input of a user are integrated; a Braille display unit 103 capable of Braille display; and a control unit 301 for controlling display of the touch panel unit 102 and the Braille display unit 103. The touch panel unit 102 detects a contact position to the touch panel unit 102 by the user, and the control unit 301 controls such that information displayed at the contact position of the touch panel unit 102 is displayed in Braille by the Braille display unit 103.

Description

  The present invention relates to a portable terminal device for visually impaired persons.

  As background art of this technical field, Patent Document 1 states that “a part of the apparatus body is projected by an actuator in accordance with the display content on the display unit, so that the display content is transmitted not only through the visual sense of the operator but also through the sense of touch. Therefore, the display contents can be intuitively notified to the operator, and the operability for the operator can be improved. “Mobile terminal device” is described.

Japanese Patent Application Laid-Open No. 2010-34833.

  In recent years, many portable terminal devices equipped with a touch panel as an interface have been used. In such a touch panel type mobile terminal device, the display screen for displaying information is the same as the operation screen for receiving the operation input of the operator. The operator can read the character information displayed on the display screen, and can execute a specific function by touching a button (icon) displayed on the same screen with a finger or the like. Can do. Thereby, a highly convenient portable terminal device is realized. Thus, since it is necessary to operate a touch-panel type portable terminal device while viewing information displayed on a screen, it is assumed that a person who does not have a visual disability will use it.

  Therefore, Patent Document 1 states that “the display unit is disposed on the back surface portion of the apparatus main body provided with the contact detection unit, and the actuator protrudes part of the contact detection unit according to the display content on the display unit. In other words, the actuator includes an actuator that can project a part of the display portion so as to overlap with the display portion that displays information. Thereby, “actuator 30 corresponding to the Braille whose character content is translated” can be driven, and even a person with visual disabilities can read the character displayed on the display screen.

  However, in the technique described in Patent Document 1, Braille display is performed on the display unit. In braille display, a character or numeral is represented by a total of 6 points in 2 rows and 3 columns, so that the area necessary for displaying one character is determined by the interval of dot arrangement. Therefore, in the technique described in Patent Document 1, the number of characters and the amount of information that can be displayed in braille are limited depending on the size of the display unit.

  Specifically, this is a limitation of icon display. The icons displayed on the display unit are easy-to-understand illustrations of the contents of the operation, and are represented by pictures or reduced characters. For example, there is an icon representing a function of copying a part of a sentence. In order to express that this icon has a copy function, it is possible to display the information for three characters of "copy" in the display space for one icon by displaying the character with a reduced size. It becomes possible. However, when a person with visual disabilities is an operator of a touch panel type portable terminal, when expressing three characters in Braille using the technique described in Patent Document 1, the size of the characters may be reduced. Can not.

  Thus, in the case of a touch panel type portable terminal device, since the operation unit and the display unit are integrated as a touch panel unit, if the amount of information that can be displayed on the touch panel unit by braille display is limited, the visual impairment is impaired. When a person is an operator, convenience may be impaired.

  Therefore, the present invention is to solve such problems, and an object of the present invention is to provide a mobile terminal device for visually handicapped persons that does not impair convenience even if a person with visual disabilities is an operator. .

  In order to solve the above problems, for example, the configuration described in the claims is adopted.

  The present application includes a plurality of means for solving the above problems. To give an example, a mobile terminal device is a communication processing unit that transmits and receives information, a display unit that displays information, and a user operation input. An input unit that accepts, a braille display unit capable of displaying braille, and a control unit that controls display on the display unit and the braille display unit, and the display unit is in contact with the display unit by a user A position is detected and output to the control unit, and the control unit controls the information displayed at the contact position of the display unit to be displayed in Braille on the Braille display unit.

  According to the mobile terminal device of the present invention, it is possible to improve the convenience of a person with visual impairment.

1 is a schematic diagram of a front appearance of a mobile terminal device according to a first embodiment. It is a schematic diagram of the back appearance of the portable terminal device concerning Example 1. It is the figure of the front which showed a mode when the operator hold | maintained the portable terminal device which concerns on Example 1. FIG. It is the figure of the back which showed a mode when the operator hold | maintained the portable terminal device which concerns on Example 1. FIG. 1 is a functional block diagram of a mobile terminal device according to a first embodiment. FIG. 6 is a configuration diagram in which “to” is displayed on the braille display unit according to the first embodiment. It is the block diagram which displayed "kyo" in the braille display part which concerns on Example 1. FIG. 3 is an example of a display on a touch panel unit according to the first embodiment. It is a figure which shows the movement of an operator's hand on the touchscreen part which concerns on Example 1. FIG. It is a figure which shows a mode when an operator's hand touches the character string displayed on the touchscreen part which concerns on Example 1. FIG. It is a figure which shows a mode when an operator's hand touches the icon displayed on the touchscreen part which concerns on Example 1. FIG. 3 is a flowchart of the operation of a control unit according to the first embodiment. It is a schematic diagram of the external appearance of the other structure of the portable terminal device which concerns on Example 1. FIG.

  Hereinafter, Example 1 of an embodiment of the invention will be described in detail with reference to the drawings.

  Fig.1 (a) is a front external view of the portable terminal device which concerns on embodiment of this invention, FIG.1 (b) is a back external view of the portable terminal device which concerns on embodiment of this invention. A mobile terminal device 101 according to the present embodiment includes a touch panel unit 102 on the front side as shown in FIG. 1A and a Braille display unit 103 on the back side as shown in FIG. A changeover switch 104 is provided.

  Next, an example of a state when the portable terminal device 101 according to the embodiment of the present invention is held by an operator by hand will be described with reference to FIG.

  FIG. 2A shows an example of a front view when the operator holds the mobile terminal device 101 according to the embodiment of the present invention by hand. The operator's holding palm 201 supports the portable terminal device 101. The portable terminal device 101 is sandwiched between the thumb 202 of the holding hand, the middle finger 203 of the holding hand, the ring finger 204 of the holding hand, and the little finger 205 of the holding hand. I support. FIG.2 (b) has shown an example of the mode of a back surface when the operator hold | maintains the portable terminal device which concerns on embodiment of this invention with a hand. The operator's holding hand back 201 supports the portable terminal device 101, and the portable terminal device 101 is sandwiched by the thumb 202 of the holding hand, the middle finger 203 of the holding hand, the ring finger 204 of the holding hand, and the little finger 205 of the holding hand. I support. The index finger 206 of the holding hand supports the back surface of the mobile terminal device 101 so as to touch the braille display unit 103. For this reason, even if a person with visual impairment is an operator, the braille displayed on the braille display unit 103 can be read using the index finger 206 of the holding hand only by holding the portable terminal device 101.

  The touch panel unit 102 according to the present embodiment has a function of detecting a contact position by a terminal operator, a contact detection signal indicating whether or not a contact with the operation surface has been made, and a contact position coordinate value with respect to the operation surface. It is configured to output a contact coordinate signal indicating (X axis, Y axis). In addition, the touch panel unit 102 has a function of displaying information such as characters, symbols, and icons.

  The function of detecting the touch of the touch panel unit 102 is based on an existing technology of a general touch panel such as a resistive film type, an ultrasonic type, a photoelectric type, and a capacitance type, and detailed description thereof is omitted. The function of displaying characters and designs on the touch panel unit 102 is an existing technology for general displays such as LCD devices (liquid crystal display devices), EL (electroluminescence) display devices, and CRT (cathode ray tube) devices. Therefore, detailed description thereof is omitted.

  FIG. 3 is a functional block diagram of the mobile terminal device 101 according to the present embodiment. The functional blocks shown in FIG. 3 are simplified to explain the present invention, and the mobile terminal device 101 is assumed to have processing functions necessary for a normal mobile terminal device. As illustrated in FIG. 3, the mobile terminal device 101 includes a control unit 301. The touch panel unit 102 and the braille display unit 103 are connected to the control unit 301, receives the contact detection signal and the contact coordinate signal output from the touch panel unit 102, and instructs the contents displayed on the touch panel unit 102 and the braille display unit 103. To do.

  Further, the display changeover switch 104 is also connected to the control unit 301. When the display changeover switch 104 is pressed, a display changeover signal is output and input to the control unit 301. When the display switching signal is input, the control unit 301 stops all visual display and stops visual display on the touch panel unit 102 when characters, symbols, icons, and the like are visually displayed. All visual displays can be resumed.

  Next, a configuration of the braille display unit 103 in this embodiment and an example of a display instructed by the control unit 301 to the braille display unit 103 will be described with reference to FIG. The braille display unit 103 according to the present embodiment includes a note display cell unit 401 and a character display cell unit 402, and uses one cell for two characters of the note display cell unit 401 and the character display cell unit 402. Or one syllable can be displayed in Braille.

  The control unit 301 instructs the braille display unit 103 what display is to be performed on each of the note display cell unit 401 and the character display cell unit 402. FIG. 4A shows an example in which one character “to” of hiragana is displayed on the braille display unit 103 in the present embodiment. When displaying one character “to” of hiragana in braille, the control unit 301 displays one character “to” of hiragana on the character display unit 402 without displaying anything on the note display unit 401. Next, the braille display unit 103 is instructed.

  Next, FIG. 4B is an example when one syllable “kyo” of hiragana is displayed on the braille display unit 103 in the present embodiment. When displaying one syllable “Kyo” in Hiragana in Braille, the control unit 301 displays a stray note in the note display cell unit 401 according to the rules of Braille notation, and displays “Hi” in Hiragana on the character display cell unit 402. The braille display unit 103 is instructed to display.

  The note display cell unit 401 can be used not only to display notation notes but also muddy notes, semi-turbid notes, and the like. As described above, the control unit 301 can instruct the braille display unit 103 to display one character using only the character display cell unit 402, and the note display cell unit 401 and the character display cell unit It is also possible to instruct to display one syllable using both of 402 at the same time. The braille display unit 103 displays one character or one syllable in braille in accordance with an instruction from the control unit 301.

  The braille display unit 103 according to the present embodiment includes one set of a note display cell unit 401 and a character display cell unit 402 and displays braille one character or one syllable at a time, but may include two or more display cells. good. When there are a large number of display squares arranged, many characters can be displayed in braille at the same time, which improves the convenience for the operator.

  In addition, the note display square section 401 and the character display square section 402 are configured using a technique described in, for example, Japanese Patent Application Laid-Open No. 2009-288757. Specifically, using the vibration generated by intermittently applying a voltage to the piezoelectric element, utilizing the fact that the mover fitted to the shaft connected to the piezoelectric element moves by vibration, Displays braille. However, the note display cell unit 401 and the character display cell unit 402 are not limited to the method using the vibration of the piezoelectric element described in Japanese Patent Application Laid-Open No. 2009-288757, but include electromagnets, thermal expansion, and springs. It may be constituted by force, motor force, air pressure, other mechanical mechanism or electronic mechanism.

  Next, an example of display instructed by the control unit 301 to the touch panel unit 102 in the present embodiment will be described with reference to FIG. The control unit 301 in the present embodiment divides the touch panel unit 102 into two in the Y-axis direction shown in FIG. 5A, thereby displaying a character display area 506 that can display a predetermined character or character string, It is possible to instruct the display to be distinguished from the icon display area 507 in which an operation icon for instructing the start of the operation can be displayed. Further, by dividing the character display area 506 in the X-axis direction, it is possible to instruct to display a predetermined number of character / syllable display areas 508. In the character / syllable display area 508, one character or one syllable is displayed.

  FIG. 5 (a) shows an example in which the word “Iroha Nihongo in the Patent Office” is the original character string 504 displayed in Braille. The character string displayed in braille on the mobile terminal device 101 in the present embodiment is the text of a transmitted / received mail, or information obtained through the Internet use by the mobile terminal device 101 or a communication processing unit (not shown).

  Further, when the mobile terminal device 101 has an imaging means, a means for acquiring text data, and a voice recognition means, the imaging means and the means for acquiring text data are acquired by a character string acquired from a magazine or a book or a voice recognition means. A character string converted from the voice data may be displayed. Since the portable terminal device 101 also functions as a portable braille display device, convenience for the operator is improved.

  The control unit 301 converts the original character string 504 to be displayed into hiragana so that it can be represented in braille with a total of 6 points in 2 columns and 3 rows, and generates a display kana string 505. In the example of FIG. 5 (a), the display kana string 505 is 18 characters and syllables. At this time, since the character display area 506 is divided into six character / syllable display areas 508, the display character string 505 of 18 characters cannot be displayed all at once.

  Therefore, the control unit 301 divides the display pseudonym string 505 into a plurality of rows. At this time, it is assumed that one line includes the number of characters / syllables equal to or less than the number of characters / syllable display area 508. In the example of FIG. 5A, since the number of character / syllable display areas 508 is six, one line is equal to or less than six characters / syllable, and the control unit 301 indicates that The 18-character display kana string 505 is divided into three lines of “Tokcho Chode”, “Iroha Nihohe”, and “Tochirinuru”.

  Then, the first line “Tokcho Chode” is divided into one character or one syllable, and six letters and syllables “T”, “T”, “Kyo”, “Cho”, “U”, and “De” are displayed. Divide into The control unit 301 instructs the touch panel unit 102 to display the six characters / syllables in the character / syllable display area 508 one character or one syllable at a time.

  In the example of FIG. 5A, a copy operation icon 501, a paste operation icon 502, and a display switching operation icon 503 are displayed in the icon display area 507. As described above, the control unit 301 can instruct the touch panel unit 102 to display content and coordinates to display so that an arbitrary character, character string, or icon is displayed at an arbitrary position.

  In addition, the control unit 301 uses the contact coordinate signal to monitor a change in the contact position when the operator's hand 509 moves while touching the touch panel 102 as a track of the contact position, and changes the contact position. If the transition represents a predetermined locus, the row of the display kana string 505 displayed in the character display area 506 can be changed.

  For example, in the example of FIG. 5B, a line “Tokkyocho de” is displayed in the character display area 506. At this time, the operator's hand 509 crosses a predetermined trajectory, for example, the character display area 506 from the left to the right (in the X-axis increasing direction), and “to” “tsu” “cho” “cho” “cho”. When a trajectory moved in order as “de” is drawn, it is possible to instruct to display “Irohanihohe”, which is the second row of the display kana string 505.

  Note that it is possible to perform a forward display operation in which the second line is displayed next to the first line by drawing a predetermined trajectory that the operator's hand 509 moves from left to right. In another predetermined locus, for example, when the movement crosses the character display area 506 from the right to the left (in the X-axis decreasing direction), the first line is displayed next to the second line. A rewind display operation may be performed. As described above, since the forward / rewind display operation is possible, the braille can be read while going back and forth between the character strings, so that the character strings can be accurately understood.

  Next, the operation of the control unit 301 when the operator touches the touch panel unit 102 in the mobile terminal device 101 according to the present embodiment will be described with reference to FIGS. 6 and 7. FIG. 6 shows an example of how the operator's hand 509 touches the touch panel unit 102, and FIG. 7 is a flowchart of the operation of the control unit 301 when the operator's hand 509 touches the touch panel unit 102. It is an example.

  In the example of FIG. 6A, the character display area 506 is displayed as “tokcho cho de”, and the operator's hand 509 touches the character / syllable display area 508 displaying “cho”. It shows how it is. On the other hand, in the example of FIG. 6B, a copy operation icon 501, a paste operation icon 502, and a display switching operation icon 503 are displayed in the icon display area 507, and the operator's hand 509 performs display switching. A state where the operation icon 503 is touched is shown.

  An example of the operation of the control unit 301 when the operator's hand 509 touches the touch panel unit 102 as described above will be described with reference to the flowchart of FIG.

  First, in step S <b> 701, it is determined whether or not the operator's hand 509 is in contact with the touch panel unit 102 based on a contact detection signal output from the touch panel unit 102. If the operator's hand 509 is not in contact with the touch panel unit 102, step S707 is executed, and if it is in contact, step S702 is executed.

  In step S <b> 702, it is determined based on the contact coordinate signal output from the touch panel unit 102 whether the operator's hand 509 is in contact with the character display area 506 or the icon display area 507. In the example of FIG. 6A, since the operator's hand 509 is touching the character display area 506, step S703 is executed next. In the example of FIG. 6B, since the operator's hand 509 touches the icon display area 507, step S704 is executed next.

  In step S703, the braille display unit 103 is instructed to display the display content (one character or one syllable) of the character / syllable display area 508 displayed at the coordinates matching the coordinates indicated by the contact coordinate signal in braille. Return to step S701.

  In the example of FIG. 6A, the operator's hand 509 touches the character / syllable display area 508 displaying “Cho”. Therefore, the control unit 501 instructs the braille display unit 103 to display “cho”. Specifically, it is instructed to display a stray note on the note display box 401 of the braille display unit 103 and to display the hiragana “to” on the character display box 402.

  In step S704, it is compared based on the contact coordinate signal output from the touch panel unit 102 whether the coordinates with which the operator's hand 509 is in contact with the coordinates where the operation icon is actually displayed. As a result of the comparison, if they do not match, step S707 is executed, and if they match, step S705 is executed.

  In step S705, the braille display unit 103 is instructed to display a predetermined braille indicating the meaning of “icon”. Here, the predetermined Braille indicating the meaning of “icon” is, for example, that “A”, “I”, “K”, and “N” are displayed in Braille in order at predetermined time intervals, one character or one syllable at a time. Alternatively, braille that is not used when displaying braille in normal Japanese or other languages may be displayed. Thereby, the person who is reading the braille displayed on the braille display unit 103 can recognize that it is not a character but an icon that is currently in contact.

  In step S706, the name of the icon displayed at the coordinate that matches the coordinate indicated by the contact coordinate signal or the description of the icon is displayed in braille in order at predetermined time intervals, one character or one syllable. The braille display unit 103 is instructed, and the process returns to step S701. In step S707, the braille display unit 103 is instructed to stop displaying braille.

  As described above, according to the mobile terminal device 101 according to the present embodiment, the display content of the touch panel unit 102 touched by the operator can be displayed in the Braille display unit 103. Further, just by holding the mobile terminal device 101 by the operator, the finger of the holding hand naturally touches the Braille display unit 103, and the operator reads the braille display while holding the mobile terminal device 101 with one hand. Therefore, it is possible to improve the convenience of people with visual disabilities.

  Further, as described above, the coordinate position on the touch panel unit 102 touched by the operator is monitored, and when the operator's hand movement draws a predetermined locus, the contents of the character string to be automatically displayed are changed. Since the operator reads a line, the operator can easily and automatically execute operations such as forward or rewind such that the next line is displayed immediately after reading the line. It is possible to improve the convenience of people with visual disabilities.

  Furthermore, when a person with visual disabilities is an operator, if there is no need to visually display characters, symbols, icons, etc. on the touch panel unit 102 by the display changeover switch 104, the visual display is stopped. Low power consumption can be realized. In addition, since characters, designs, icons, and the like can be visually displayed on the touch panel unit 102 as necessary, for example, it is easy to request assistance from a person who does not have a visual impairment and improve convenience. Can do.

  In the present embodiment, the mobile terminal device 101 includes the display changeover switch 104. However, the operation icon displayed on the touch panel 102, specifically, the same function as the display changeover switch, specifically, FIG. It may be realized by the display switching icon 403 shown in FIG.

  In the above, the flow for displaying icon information in braille has been described. In order to distinguish the touch of the icon for displaying the icon information on the braille display unit of the operator's hand 509 from the touch for starting the icon, the number of times of touching the icon on the touch panel unit is determined. It may be used. For example, when the touch to the icon is performed once, the touch is distinguished, such as Braille display, and when the touch is performed twice within a predetermined time, the icon is activated.

  In addition, the display on the braille display unit has been described by taking a Japanese character string as an example in the present embodiment, but it is sufficient that it can be represented by six brailles in three rows and two columns, such as an English alphabet or a telephone number. Numbers can also be displayed on the braille display unit by the portable terminal device of this embodiment.

  On the screens shown in FIGS. 5 and 6, not only can the text be displayed in braille, but also the operator can edit the text, such as creating a mail. As a specific example, the character display area 506 is a text editing screen, and hiragana, numbers, and alphabets are displayed in the icon display area 507. Select the displayed characters and create text. Then, if the operator's hand draws a predetermined trajectory on the character display area 506 of the touch panel unit 102, the created text can be displayed in the Braille display unit 103 by performing forward / rewind display operations of the created text. So you can check the created text.

  In this embodiment, the input unit of the mobile terminal device may include an input unit that accepts an input operation of the operator in addition to the touch panel unit 102.

  In this embodiment, the Braille display unit 103 has been described with respect to the mobile terminal device 101 disposed on the back surface of the touch panel unit. However, as shown in FIG. 8, the Braille display unit 103 may be disposed below the touch panel unit. .

  FIG. 8 shows an example of a front view when the operator holds the portable terminal device 801 by hand. In FIG. 8, the same components as those in FIG. 2A are denoted by the same reference numerals, and the description thereof is omitted. The portable terminal device 801 according to the second embodiment is different from the portable terminal device 101 according to the first embodiment only in that the braille display unit 103 is not provided on the back side of the device but is provided on the lower front portion of the portable terminal device 801. .

  In FIG. 8, the operator's holding palm 201 holds and supports the portable terminal device 801 together with the thumb 202 of the holding hand. The middle finger 203 of the holding hand, the ring finger 204 of the holding hand, the little finger 205 of the holding hand, and the index finger of the holding hand (not shown) support the back surface of the portable terminal device 101. In addition, the thumb 202 of the holding hand touches the braille display unit 103 disposed at the lower front portion of the mobile terminal device 801.

  As described above, according to the mobile terminal device 801 according to the present embodiment, even if a person with visual impairment is an operator, the braille display unit can be displayed using the thumb 202 of the holding hand only by holding the device. It becomes possible to read the braille displayed in 103. In addition, when the mobile terminal device 801 is operated on a desk, the user can easily touch the braille display unit 103 and can improve the convenience of a person with a visual impairment.

  The mobile terminal device having the Braille display unit has been described above. However, the mobile terminal devices 101 and 801 according to the present embodiment may have voice guidance means. The braille display function by the braille display unit 103 and the voice guidance function cooperate with each other, so that the convenience when the person who has a visual impairment is an operator of the mobile terminal device is further increased.

DESCRIPTION OF SYMBOLS 101 Portable terminal device 102 Touch panel part 103 Braille display part 104 Display changeover switch 201 Holding hand palm 202 Holding hand thumb 203 Holding hand middle finger 204 Holding hand ring finger 205 Holding hand index finger 207 Holding hand index finger 207 Holding hand back 301 Control part 401 Note display area 402 Character display area 501 Copy operation icon 502 Paste operation icon 503 Display switching operation icon 504 Original character string to be displayed 505 Display kana string 506 Character display area 507 Icon display area 508 Character / syllable display area 509 Operation Hand 801 portable terminal device

Claims (7)

A portable terminal device,
A communication processing unit for transmitting and receiving information;
A display for displaying information;
An input unit for accepting user operation input;
A braille display section capable of displaying braille,
A control unit that controls display on the display unit and the braille display unit;
With
The display unit detects a contact position of the user to the display unit and outputs the detected position to the control unit,
The said control part is a portable terminal device which controls so that the information currently displayed on the said contact position of the said display part is displayed on the Braille display part in Braille. A portable terminal device,
A communication processing unit for transmitting and receiving information;
A touch panel unit in which a display unit for displaying information and an operation unit for receiving a user's operation input are integrated;
A braille display section capable of displaying braille,
A control unit for controlling display on the touch panel unit and the braille display unit;
With
The touch panel unit detects a contact position of the user with the touch panel unit and outputs the detected position to the control unit.
The said control part is a portable terminal device which controls so that the information currently displayed on the said contact position of the said touch panel part may be displayed on the Braille display part in Braille. The mobile terminal device according to claim 1 or 2,
The information displayed on the touch panel unit is a character or a character string,
The said control part is a portable terminal device which controls so that the said character or character string currently displayed on the said touch position of the said touch panel part may be displayed on the said Braille display part in Braille. The mobile terminal device according to any one of claims 1 to 3,
The information displayed on the touch panel unit is an icon,
The said control part is a portable terminal device which controls so that the information of the said icon currently displayed on the said contact position of the said touch panel part may be displayed on the Braille display part in Braille. The mobile terminal device according to any one of claims 1 to 4,
The Braille display part is arranged at the lower part or the back of the touch panel part,
Mobile terminal device. The mobile terminal device according to any one of claims 1 to 5,
When a character string is displayed on the touch panel unit, the control unit detects a transition of the change of the contact position, and when the transition draws a predetermined locus, the display of the touch panel unit is changed.
Mobile terminal device. The portable terminal device according to any one of claims 1 to 6,
A display changeover switch or a display changeover icon for switching the display of the touch panel portion and the braille display portion,
When the display switching switch or the display switching icon is operated, the control unit stops the visual display when the touch panel unit is visually displayed, and the visual display of the touch panel unit is not performed. In some cases, the mobile terminal device is controlled to perform visual display.

Images